Problem with DirectoryEntry.Invoke method

[Walter Zydhek]

Can anyone help with the use of the Invoke method of a
Directory Entry object? I am using vb.net.

I am trying to invoke the get_Filter method of the
IIS://LocalHost directory entry, and get the following
error: System.Reflection.TargetInvocationException

MSDN Library shows the following for the get_Filter method:

HRESULT get_Filter
([out] VARIANT *pvFilter);

I imagine the problem I am having is the [out] variable.
Do I need to somehow pass a reference to a variable?

Any help would be appreciated.

[Max L. Vaughn [MSFT]]

I would resort to the nativeobject and use the appropriate interface if you
can't get the Invoke to work.

I tried several variations on a similiar Invoke on a standard
DirectoryEntry object and could not get it to work as I expected. However,
the DirectoryEntry is a managed wrapper around the Native ADSI interfaces
so you could use the de.NativeObject property to retrieve the base object
and use the property directly.

Sincerely,
Max Vaughn [MS]
Microsoft Developer Support
Disclaimer: This posting is provided "AS IS" with no warranties, and
confers no rights. You assume all risk for your use.

[Max L. Vaughn [MSFT]]

I would resort to the nativeobject and use the appropriate interface if you
can't get the Invoke to work.

I tried several variations on a similiar Invoke on a standard
DirectoryEntry object and could not get it to work as I expected. However,
the DirectoryEntry is a managed wrapper around the Native ADSI interfaces
so you could use the de.NativeObject property to retrieve the base object
and use the property directly.

Sincerely,
Max Vaughn [MS]
Microsoft Developer Support
Disclaimer: This posting is provided "AS IS" with no warranties, and
confers no rights. You assume all risk for your use.